REAP is a solo point-crawling combat rpg. It has a Soulsborne flavor and positions your character a cosmic force, crossing between realms and eliminating their keystone monsters, causing them to collapse.
The PDF is 25 pages and is currently a quickstart, but has clean layout and playful, evocative illustrations.
In terms of gameplay, the core loop is very simply. You move between map points, decide how you're going to interact with each node, and then move on. Some nodes are complex, with actions gated off by stat requirements or actions at other nodes. Others are small-scale fights. Getting killed doesn't end play, it just respawns monsters, so as long as you're persistent this isn't really a game you can lose.
Combat is moderately complex, a bit more granular than a Fighting Fantasy gamebook. You have a small grid and enemies have simple AIs, and you have various resources you can spend and a dice placement mechanic for taking actions, but you're not rolling for hit locations or tracking dozens of derived stats.
It doesn't feel random, even though there are random elements. Your actions feel very intentional, and determine the outcome of the fight.
In terms of player resources, there's a playable adventure (Kyrie Realm) and more to be expected with the upcoming crowdfund. The rules are also clearly explained, and you could pick up this book without having played a ttrpg before.
Overall, if you like gamebooks (and especially if you enjoy the extra granularity of series like Destiny Quest,) you should check this out. It's a solidly built solo rpg with combat that feels meaningful and maps that are fun to explore. It's open-source Dark Souls. There's a lot to like.